Give the name of reaction in the<br> preparation of alkene from alcohol<br> compounds.

True or False: Particles that are moving faster have a higher temperature

allochka39001 [22]

Answer:

true

Explanation:

I'm not sure why cause I dont know how to explain but it's TRUE

4 0

3 years ago

Read 2 more answers

A gas is at an original pressure of 412 torr and a temperature of 79°C. What is the new temperature of the gas (in K) if the pre

olga_2 [115]

Answer:

Whenever you are doing calculations with gases and temperature, you must convert the temperature from C into Kelvin. Then, just plug in your values and do the calculation. So, for the first one,

32C + 273 = 305 K

63C + 273 = 336 K

Then, P1/T1 = P2/T2

575 torr / 305 K = P2 / 336 K

P2 = 633 torr

For the second one:

P1/T1 = P2/T2

575/305 = 5750 / T2

T2 = 3050 K

7 0

3 years ago

Look at the following chemical compounds. State how many molecules of each reactant are present. (I’m sorry I’ve been working on

Kryger [21]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

<h3>Compound ~ $\mathrm{NaOH}$ </h3>

Na = 1

O = 1

H = 1

<h3>Compound ~ $\mathrm{CO_2}$ </h3>

C = 1

O = 2

<h3>Compound ~ $\mathrm{3 \: CaO}$ </h3>

Ca = 3

O = 3

<h3>Compound ~ $\mathrm{2 MgCl_2}$ </h3>

Mg = 2

Cl = 4

7 0

2 years ago

The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and in

motikmotik

Answer:

D. 40 % increase

Step-by-step explanation:

r = k[A]²/[B]

The rate is inversely proportional to [B]. If [B] is doubled, the rate is halved.

We must double this rate to get back to the original.

The rate is directly proportional to [A]².

2 = [A]₂/[A]₁² Take the square root of each side

√2 = [A]₂/[A]₁ Multiply each side by [A]₁

[A]₂ = √2[A]₁

[A]₂ = 1.41[A]₁

We must increase [A] by 41 %.

6 0

3 years ago

How many moles are contained in 2.3 liters of a 1.2M solution?

elena-s [515]

Answer:

$\boxed {\boxed {\sf 2.76 \ mol}}$

Explanation:

Molarity is found by dividing the moles of solute by liters of solution.

$molarity = \frac {moles}{liters}$

We know the molarity is 1.2 M (mol\liter) and there are 2.3 liters of solution. Substitute the known values into the formula.

$1.2 \ mol/liter= \frac {x}{2.3 \ liters}$

Since we are solving for x, we must isolate the variable. It is being divided by 2.3 and the inverse of division is multiplication. Multiply both sides by 2.3 liters.

$2.3 \ liters *1.2 \ mol/liter= \frac {x}{2.3 \ liters}* 2.3 \ liters\\2.3 *1.2 \ mol= x\\2.76 \ mol =x$

In a solution with a molarity of 1.2 and 2.3 liters of solution, there are 2.76 moles.

3 0

3 years ago

Give the name of reaction in the preparation of alkene from alcohol compounds.